namespace PDUConverter
{
    /// <summary>
    /// Implements the base for a validity Period.
    /// </summary>
    /// <remarks><para>
    /// <b>Note to inheritors:</b> Override the ToString method in derived classes to be able to
    /// display the validity immediately as a string.
    /// </para>
    /// </remarks>
    public abstract class ValidityPeriod
    {
        protected ValidityPeriod()
        {
        }
    }
}